menu
Sign up

The Finely Divided, Red, Brown, and Yellow Soil-Colouring Minerals Originate

Question 32
Multiple Choice

The finely divided, red, brown, and yellow soil-colouring minerals originate by what process? A)mechanical weathering of very fine-grained, blue-grey clays B)chemical weathering of quartz and feldspars C)precipitation of insoluble iron oxides during the chemical weathering process D)mechanical weathering of the feldspars and micas in granite and rhyolite

Related questions
Q 33
What mineral particles are the dominant colouring agents in reddish, brownish, and yellowish soils? A)soluble potassium and sodium bicarbonates B)humus and calcium carbonate C)very fine-sized silica and calcite particles D)dust-sized grains of iron oxides
Q 34
Ordinary chemical weathering of rock forming minerals like feldspar and amphibole produces ________. A)dissolved clays and iron hydroxides B)all of the sodium and chloride ions that make the salt content of the seas C)solid residues of quartz and reduced iron compounds D)soluble silica and ions (Ca?², Na?, Mg?² )plus residues of clay minerals
Q 35
How do large, spheroidal boulders form from massive bedrock? A)Exfoliation breaks a fresh, spherical block from the bedrock. B)A fresh rock slab is broken out along sheeting fractures and then rounded by residual laterization. C)An angular block, broken away from bedrock, gets rounded by rolling down a slope. D)The corners and edges of fracture-bounded blocks are weathered faster than the planar areas of the fracture surfaces.
logo
© 2020-2021 Cozyplus FZ LLC. All rights reserved